<template>
  <div>
    <h3>用户列表组件</h3>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- {{scope.row}}  此操作为获取数据-->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateCganged(scope.row)"
              active-color="#13ce66"
              inactive-color="#ff4949"
            ></el-switch>
          </template>
        </el-table-column>
        <!-- 按钮操作 -->
        <el-table-column label="操作" width="180px">
          <!-- slot-scope="scope" 多的 -->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-tooltip class="item" effect="dark" content="编辑" placement="top" :enterable="false">
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>

            <!-- 删除按钮 -->
            <el-tooltip class="item" effect="dark" content="删除" placement="top" :enterable="false">
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>

            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="showRoleDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页导航区域@size-change(pagesize改变时触发)@current-change(页码发生改变时触发):current-page(设置当前页码):page-size(设置每页的数据条数):total(设置总页数)-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="提示" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 只要是验证规则以Rules结尾 引用 Ref结尾-->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 对话框主体区域 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
<el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
    <div>
    <p>当前的用户:{{userInfo.username}}</p>
    <p>当前的角色:{{userInfo.role_name}}</p>
    <p>分配新角色:
      <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolelist"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
    </div>
    <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo = false">确 定</el-button>
    </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (!regEmail.test(value)) {
        return cb(new Error('请输入合法的邮箱'))
      }
      // 返回一个错误提示
      cb()
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (!regMobile.test(value)) {
        return cb(new Error('请输入合法的手机号码'))
      }
      // 返回一个错误提示
      cb()
    }
    return {
      // 获取用户列表参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      rolelist: [],
      total: 0,
      // 控制添加用户的显示与隐藏
      addDialogVisible: false,
      setRoleDialogVisible: false,
      // 保存正在操作的那个用户信息
      userInfo: {},
      // 保存所有的角色信息
      rolesList: [],
      // 保存用户选中的角色id
      selectedRoleId: '',
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在6~15个字符',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表是失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听pagesize改变的事件
    handleSizeChange (newSize) {
      //   console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值 改变的事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听开关状态事件
    async userStateCganged (userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加用户
    addUser () {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败咯！')
        }
        this.$message.success('添加用户成功哈！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog (id) {
      // console.log(id)
      this.editDialogVisible = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      // console.log(res.data)
      this.editForm = res.data
    },
    // 监听修改用户对话框的事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    editUserInfo () {
      console.log(1)
      // 用户点击修改表单中的确定按钮之后，验证表单数据
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 发送请求完成修改用户的操作777
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          this.editForm
        )
        // 判断如果修改失败，就做提示
        if (res.meta.status !== 200) return this.$message.error('修改用户失败')
        // 修改成功的提示
        this.$message.success('修改用户成功')
        // 关闭对话框
        this.editDialogVisible = false
        // 重新请求最新的数据
        this.getUserList()
      })
    },
    async removeUserById (id) {
    // 弹出确定取消框，是否删除用户
      const confirmResult = await this.$confirm('请问是否要永久删除该用户', '删除提示', {
        confirmButtonText: '确认删除',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户点击确认，则confirmResult 为'confirm'
      // 如果用户点击取消, 则confirmResult获取的就是catch的错误消息'cancel'
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      // 发送请求根据id完成删除操作
      const { data: res } = await this.$http.delete('users/' + id)
      // 判断如果删除失败，就做提示
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      // 修改成功的提示
      this.$message.success('删除用户成功')
      // 重新请求最新的数据
      this.getUserList()
    },
    async showRoleDialog (userInfo) {
      this.userInfo = userInfo
      this.setRoleDialogVisible = true
      const { data: res } = await this.$http.get('roles')
      this.rolelist = res.data
    },
    async saveRoleInfo () {
      // 当用户点击确定按钮之后
      // 判断用户是否选择了需要分配的角色
      if (!this.selectedRoleId) {
        return this.$message.error('请选择需要分配的角色')
      }
      // 发送请求完成分配角色的操作
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })

      // 判断如果删除失败，就做提示
      if (res.meta.status !== 200) { return this.$message.error('分配角色失败') }

      this.$message.success('分配角色成功')
      this.getUserList()
      // 关闭对话框
      this.setRoleDialogVisible = false
    },
    setRoleDialogClosed () {
      // 当关闭对话框的时候，重置下拉框中的内容
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>
